chrome-ext SKILL.md skillB
chrome-ext from beckyisj/webdev-kit is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add beckyisj/webdev-kit/chrome-ext@git:20260906.5003aa5Pins git:20260906.5003aa5 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- B, 16 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- beckyisj/webdev-kit
- Path
chrome-ext/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260906.5003aa5, committed Sep 6, 2026
- First version recorded
- Apr 16, 2026
- Size
- 6,254 bytes
- Repository stars
- 3
- License
- MIT
Scaffold a Chrome extension from a description. Generates manifest v3, content scripts, popup, and styles with minimal permissions. Use when building a new browser extension.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Chrome Extension Scaffolder
Generate a complete Chrome extension skeleton from a plain-English description.
**Argument**: `$ARGUMENTS` is a description of what the extension should do (e.g., "highlight all links on the page and copy them to clipboard"). If not provided, ask.
## Process
### 1. Parse the description
Determine from the description:
- **Injection type**: Does it need a content script (modifies pages), popup (standalone UI), or both?
- **Target sites**: All sites, or specific domains (e.g., YouTube, GitHub)?
- **Permissions needed**: What's the minimum set? See permission guide below.
- **Extension name**: Derive a short name from the description.
### 2. Choose the output directory
Ask the user where to create it. Suggest a dedicated `chrome-extensions/[Extension Name]/` folder alongside their other projects.
### 3. Generate the extension
Create these files:
#### manifest.json
```json
{
"manifest_version": 3,
"name": "[Extension Name]",
"version": "1.0.0",
"description": "[One-line description]",
"permissions": ["activeTab"],
"icons": {},
"action": {}
}
```
**Permission guide** — use the minimum required:
…Read the whole file at its exact version.
How to install
mdr add beckyisj/webdev-kit/chrome-ext@sha256:de94429e2cea5b3dThe line at the top of this page pins the label git:20260906.5003aa5, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_s2kr37n4rxxgkniu)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Apr 16, 2026 and Sep 6, 2026, about one every 144 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260906.5003aa5 latest | 2026-09-06 | 5003aa5 | 6,254 B | B | view · diff |
| git:20260416.cfee010 | 2026-04-16 | cfee010 | 6,609 B | B | view |
Audit of the latest version
- fail: No script tag (matched: <script)
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (6254 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
beckyisj/webdev-kit · 3 stars · license MIT · pushed 2026-09-06 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_s2kr37n4rxxgkniu GET https://markdownregistry.com/api/v1/resolve?ref=beckyisj/webdev-kit/chrome-ext GET https://markdownregistry.com/api/v1/blob/de94429e2cea5b3d28f692494d908e2c603a7e69c5a0223bf7035b455e83776c
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.